Bump the pip group across 7 directories with 3 updates

[dependabot]

⚠️ Dependabot is rebasing this PR ⚠️

Rebasing might not happen immediately, so don't worry if this takes some time.

Note: if you make any changes to this PR yourself, they will take precedence over the rebase.

---

Bumps the pip group with 3 updates in the /mpcontribs-api directory: pymongo, urllib3 and werkzeug.
Bumps the pip group with 3 updates in the /mpcontribs-api/requirements directory: pymongo, urllib3 and werkzeug.
Bumps the pip group with 2 updates in the /mpcontribs-client/requirements directory: pymongo and urllib3.
Bumps the pip group with 2 updates in the /mpcontribs-kernel-gateway/requirements directory: pymongo and urllib3.
Bumps the pip group with 1 update in the /mpcontribs-lux/requirements directory: urllib3.
Bumps the pip group with 2 updates in the /mpcontribs-portal/requirements directory: pymongo and urllib3.
Bumps the pip group with 2 updates in the /mpcontribs-serverless/dependencies directory: pymongo and urllib3.

Updates pymongo from 4.17.0 to 4.18.2

Release notes

Sourced from pymongo's releases.

PyMongo 4.18.2

Community notes: https://www.mongodb.com/community/forums/t/pymongo-4-18-2-released/343732

CVE-2026-96749 CVE-2026-96748 CVE-2026-96747

PyMongo 4.18.1

Community notes: https://www.mongodb.com/community/forums/t/pymongo-4-18-1-released/343338

PyMongo 4.18.0

Community notes: https://www.mongodb.com/community/forums/t/pymongo-4-18-released/343137

Changelog

Sourced from pymongo's changelog.

Changes in Version 4.18.2 (2026/09/24)

Version 4.18.2 is a bug fix release.

• Hardened the bson buffer size guard against signed integer overflow. (CVE-2026-96749_).
• Fixed connection string parsing to percent-decode each host individually. (CVE-2026-96748_).
• Client-side field level encryption now rejects a KMS endpoint ending in .sock. (CVE-2026-96747_).

.. _CVE-2026-96749: https://www.cve.org/CVERecord?id=CVE-2026-96749 .. _CVE-2026-96748: https://www.cve.org/CVERecord?id=CVE-2026-96748 .. _CVE-2026-96747: https://www.cve.org/CVERecord?id=CVE-2026-96747

Issues Resolved ...............

See the PyMongo 4.18.2 release notes in JIRA_ for the list of resolved issues in this release.

.. _PyMongo 4.18.2 release notes in JIRA: https://jira.mongodb.org/secure/ReleaseNote.jspa?projectId=10004&version=52896

Changes in Version 4.18.1 (2026/09/10)

Version 4.18.1 is a bug fix release.

• Use an exact match for the file ID in GridFS delete methods (CVE-2026-88029_).

.. _CVE-2026-88029: https://www.cve.org/CVERecord?id=CVE-2026-88029

Changes in Version 4.18.0 (2026/09/03)

PyMongo 4.18 brings a number of changes including:

• Added srvAllowedHostsSuffix as a URI option and keyword argument to :class:~pymongo.synchronous.mongo_client.MongoClient and :class:~pymongo.asynchronous.mongo_client.AsyncMongoClient. When connecting via mongodb+srv://, this option overrides the default requirement that SRV-returned hosts share the same parent domain as the seed hostname, allowing hosts under a different domain suffix to be accepted. The suffix must not be a public suffix (per the Public Suffix List <https://publicsuffix.org/list/>_). See the :class:~pymongo.synchronous.mongo_client.MongoClient and :class:~pymongo.asynchronous.mongo_client.AsyncMongoClient documentation for security considerations.
• Dropped support for MongoDB 4.2.
• Added support for MongoDB 9.0.
• PyPy support is deprecated and will be removed in a future release.

... (truncated)

Commits

• 640dd23 Prep 4.18.2 release (#3066)
• 6a0ec65 Update changelog for CVE-2026-88029 reference (#3049)
• 44be553 BUMP 4.18.2.dev0
• 127d140 PYTHON-6085 Prep for 4.18.1 release (#3047)
• fa67658 PYTHON-5994 Use exact match for file ID in GridFS delete methods (#3046)
• 1011e57 Prep branch v4.18
• 4dd7303 PYTHON-6076 Request workflows permission in create-release-branch (#3039)
• e66da83 PYTHON-5956 Use shared python/setup action for CI setup (#2990)
• 22a2ec8 PYTHON-6021 Move _write_concern_for_cmd into BaseObject (#3036)
• 2a4a004 PYTHON-5874 Fix test_fork.py failures on Python 3.15 due to fork() Deprecatio...
• Additional commits viewable in compare view

Updates urllib3 from 2.7.0 to 2.8.0

Release notes

Sourced from urllib3's releases.

2.8.0

🚀 urllib3 is fundraising for HTTP/2 support

urllib3 is raising ~$40,000 USD to release HTTP/2 support and ensure long-term sustainable maintenance of the project. If your company or organization uses Python and would benefit from HTTP/2 support in Requests, pip, cloud SDKs, and thousands of other projects please consider contributing financially to ensure HTTP/2 support is developed sustainably and maintained for the long-haul.

Thank you for your support.

Security

Fixed the following security issues:

• The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, GHSA-8988-9cw3-xx77)
• HTTPResponse.stream() and read_chunked() could buffer a chunk-size line of unbounded length in memory. (High severity, GHSA-vxq7-64xx-v4gw)
• Chunked Deflate streaming could enter an infinite loop. (Medium severity, GHSA-gh4c-6fx4-qh6g)

[!IMPORTANT] urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes.

Configure proxy CA certificates and client certificates in proxy_ssl_context, and proxy identity checks with proxy_assert_hostname or proxy_assert_fingerprint. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections.

[!NOTE] CVE IDs had not yet been assigned to these advisories at the time of release due to a backlog at GitHub's CNA.

Deprecations & Removals

• Deprecated using an empty collection as the Retry option allowed_methods to retry any verb. (#5044)

Features

• Added Url.auth_decoded and Url.auth_decoded_joined convenience properties to the result of parse_url(). (#4945)
• Added basic_auth_encoding and proxy_basic_auth_encoding parameters to urllib3.util.make_headers(). (#5092)

Bugfixes

• Fixed response header handling to replace obsolete folded header lines (obs-fold) with spaces in accordance with RFC 9112, preventing raw CRLF sequences from appearing in header values such as Set-Cookie. (#1362)

• Fixed usage of proxy_ssl_context with ProxyManager when use_forwarding_for_https=True. Passing ssl_context instead of proxy_ssl_context for HTTPS proxies in this configuration now emits a FutureWarning and will raise an error in v3.0. (#2577)

• Changed behavior of the default ConnectionPool.pool initialization. LifoQueue is now resolved from the queue module after the ConnectionPool is instantiated instead of using the default cached QueueCls class property. This is done because sometimes the queue.LifoQueue is monkey-patched late in the program, such as by gevent. (#3289)

• Raised UnrewindableBodyError instead of ValueError when retrying a request whose body had tell() but not seek(). (#3779)

• Decoded percent-encoded SOCKS proxy credentials before authenticating with the proxy server. (#3785)

• Fixed HTTPResponse.drain_conn() to discard unread response data in 64 KiB chunks (same as the default amt when doing HTTPResponse.stream(...)). (#5019)

• Fixed is_ipaddress() to detect non-standard IPv4 forms accepted by socket.connect, such as hex (0x7f000001), octal (0177.0.0.1), and decimal integers (2130706433), ensuring SSL certificate verification uses the correct mode for these addresses. (#5029)

• Fixed HTTPConnectionPool.urlopen raising a misleading FullPoolError instead of ValueError when called with an invalid timeout argument on a pool created with block=True. (#5059)

• Fixed port-zero handling to preserve explicit :0 values instead of substituting the default ports 80 or 443 in URL parsing, pool selection, proxy configuration, connection_from_url(), and HTTP/2 request authority. (#5071, #5101)

• Fixed a bug where PoolManager passed the assert_hostname and assert_fingerprint parameters to HTTP connection pools. (#5077)

• Fixed HTTPConnectionPool.urlopen() and HTTP proxy forwarding to strip URL fragments from absolute request targets before sending requests. (#5079)

• Added safeguards to the proxy tunneling code to prevent potential security issues when handling invalid characters in the proxy host and HTTP headers. This change affects users of Python 3.10, Python 3.11, and Python 3.12 when the standard library does not contain the fix; those on newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the same security fixes. (#5091)

• Fixed HTTPSConnection.connect() overriding ProxyConfig.ssl_context's certificate policy and proxy identity checks with the target connection's TLS settings when forwarding through an HTTPS proxy.

  HTTPSConnection no longer applies target SNI, assertions, or client credentials to forwarding proxy handshakes and continues to use its ssl_context as a fallback when an HTTPS proxy forwards an HTTP target. (#5093)

• Fixed URL parsing to more strictly enforce RFC 3986 host syntax, rejecting invalid host input such as raw spaces and control characters, malformed percent-encodings, and percent-encoded control characters in HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel targets. Host normalization now also follows RFC 3986 normalization rules for percent-encoded octets by decoding percent-encoded unreserved characters and uppercasing the hexadecimal digits of retained percent-encoded octets. (#5095)

... (truncated)

Changelog

Sourced from urllib3's changelog.

2.8.0 (2026-09-15)

Security

Fixed the following security issues:

• The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, GHSA-8988-9cw3-xx77 <https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77>__)
• HTTPResponse.stream() and read_chunked() could buffer a chunk-size line of unbounded length in memory. (High severity, GHSA-vxq7-64xx-v4gw <https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw>__)
• Chunked Deflate streaming could enter an infinite loop. (Medium severity, GHSA-gh4c-6fx4-qh6g <https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g>__)

.. caution::

urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.
Configure proxy CA certificates and client certificates in
proxy_ssl_context, and proxy identity checks with
proxy_assert_hostname or proxy_assert_fingerprint.
Destination client certificates and identity overrides no longer
apply to HTTPS forwarding proxy connections.

Deprecations & Removals

• Deprecated using an empty collection as the Retry option allowed_methods to retry any verb. ([#5044](https://github.com/urllib3/urllib3/issues/5044) <https://github.com/urllib3/urllib3/issues/5044>__)

Features

• Added Url.auth_decoded and Url.auth_decoded_joined convenience properties to the result of parse_url(). ([#4945](https://github.com/urllib3/urllib3/issues/4945) <https://github.com/urllib3/urllib3/issues/4945>__)
• Added basic_auth_encoding and proxy_basic_auth_encoding parameters to urllib3.util.make_headers(). ([#5092](https://github.com/urllib3/urllib3/issues/5092) <https://github.com/urllib3/urllib3/issues/5092>__)

Bugfixes

... (truncated)

Commits

• b1d30ab Release 2.8.0
• 9016d7e Skip test_read_chunked_with_trailing_data_does_not_hang for brotlicffi (#5258)
• 9101f58 Fix nox -s docs warning (#5256)
• cd770b0 Merge commit from fork
• ea2ad7b Merge commit from fork
• 0716e31 Fix loading unencrypted client keys with a password in pyOpenSSL (#5255)
• 43c68c8 Test pickling of InvalidChunkLength (#5247)
• 308b279 Share security policy between GitHub and Read the Docs (#5253)
• 53fa073 Add policy on duplicate pull requests (#5252)
• 5f2a6a8 Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (#5232)
• Additional commits viewable in compare view

Updates werkzeug from 3.1.8 to 3.1.9

Release notes

Sourced from werkzeug's releases.

3.1.9

This is the Werkzeug 3.1.9 security fix release, which fixes security issues and bugs but does not otherwise change behavior and should not result in breaking changes compared to the latest feature release.

PyPI: https://pypi.org/project/Werkzeug/3.1.9/ Changes: https://werkzeug.palletsprojects.com/page/changes/#version-3-1-9 Milestone: https://github.com/pallets/werkzeug/milestone/46?closed=1

• safe_join on Windows does not allow special devices names with empty ADS markers on NTFS. GHSA-g6x2-hccm-hh4m
• ProfilerMiddleware uses profiling.tracing on Python 3.15. #3207
• uri_to_iri and iri_to_uri preserve empty username, password, and port 0. #3189
• Improve performance of parse_options_header. #3231
• Improve performance of parse_etags. #3231
• Improve performance of parse_cookie. #3231
• get_host also checks that the port is in the valid range. #3236
• The int URL converter returns a 404 instead of 500 error when the value is longer than sys.get_int_max_str_digits(). #3237
• Improve debugger PIN generation from cgroup data inside Podman. #3245
• Authorization parsing basic auth disallows non-base64 characters. #3248
• application/x-www-form-urlencoded form data is no longer limited to max_form_memory_size, only max_content_length. #3251
• LimitedStream.readinto does not resize the buffer when it reads less than the remaining size. #3253
• Rules with 10 or more converters in a single part assign matched values correctly. #3254
• The invalid Range suffix length -0 is no longer accepted. #3255

Changelog

Sourced from werkzeug's changelog.

Version 3.1.9

Released 2026-09-27

• safe_join on Windows does not allow special devices names with empty ADS markers on NTFS. :ghsa:g6x2-hccm-hh4m
• ProfilerMiddleware uses profiling.tracing on Python 3.15. :issue:3207
• uri_to_iri and iri_to_uri preserve empty username, password, and port 0. :issue:3189
• Improve performance of parse_options_header. :pr:3231
• Improve performance of parse_etags. :pr:3231
• Improve performance of parse_cookie. :pr:3231
• get_host also checks that the port is in the valid range. :pr:3236
• The int URL converter returns a 404 instead of 500 error when the value is longer than sys.get_int_max_str_digits(). :issue:3237
• Improve debugger PIN generation from cgroup data inside Podman. :issue:3245
• Authorization parsing basic auth disallows non-base64 characters. :pr:3248
• application/x-www-form-urlencoded form data is no longer limited to max_form_memory_size, only max_content_length. :pr:3251
• LimitedStream.readinto does not resize the buffer when it reads less than the remaining size. :pr:3253
• Rules with 10 or more converters in a single part assign matched values correctly. :pr:3254
• The invalid Range suffix length -0 is no longer accepted. :pr:3255

Commits

• 6604c3b release version 3.1.9
• a78b30a update dependencies
• 8d77320 disallow special name with ads (#3309)
• b2a2c09 disallow special name with ads
• 4efac9d add links
• 400c23e Allow flit_core 4.x (#3261)
• 7132a19 allow flit_core 4
• 6fba87c only accept ASCII digits
• 263f5ca disallow range -0 (#3255)
• 0c419f9 disallow range -0
• Additional commits viewable in compare view

Updates pymongo from 4.17.0 to 4.18.2

Release notes

Sourced from pymongo's releases.

PyMongo 4.18.2

Community notes: https://www.mongodb.com/community/forums/t/pymongo-4-18-2-released/343732

CVE-2026-96749 CVE-2026-96748 CVE-2026-96747

PyMongo 4.18.1

Community notes: https://www.mongodb.com/community/forums/t/pymongo-4-18-1-released/343338

PyMongo 4.18.0

Community notes: https://www.mongodb.com/community/forums/t/pymongo-4-18-released/343137

Changelog

Sourced from pymongo's changelog.

Changes in Version 4.18.2 (2026/09/24)

Version 4.18.2 is a bug fix release.

• Hardened the bson buffer size guard against signed integer overflow. (CVE-2026-96749_).
• Fixed connection string parsing to percent-decode each host individually. (CVE-2026-96748_).
• Client-side field level encryption now rejects a KMS endpoint ending in .sock. (CVE-2026-96747_).

.. _CVE-2026-96749: https://www.cve.org/CVERecord?id=CVE-2026-96749 .. _CVE-2026-96748: https://www.cve.org/CVERecord?id=CVE-2026-96748 .. _CVE-2026-96747: https://www.cve.org/CVERecord?id=CVE-2026-96747

Issues Resolved ...............

See the PyMongo 4.18.2 release notes in JIRA_ for the list of resolved issues in this release.

.. _PyMongo 4.18.2 release notes in JIRA: https://jira.mongodb.org/secure/ReleaseNote.jspa?projectId=10004&version=52896

Changes in Version 4.18.1 (2026/09/10)

Version 4.18.1 is a bug fix release.

• Use an exact match for the file ID in GridFS delete methods (CVE-2026-88029_).

.. _CVE-2026-88029: https://www.cve.org/CVERecord?id=CVE-2026-88029

Changes in Version 4.18.0 (2026/09/03)

PyMongo 4.18 brings a number of changes including:

• Added srvAllowedHostsSuffix as a URI option and keyword argument to :class:~pymongo.synchronous.mongo_client.MongoClient and :class:~pymongo.asynchronous.mongo_client.AsyncMongoClient. When connecting via mongodb+srv://, this option overrides the default requirement that SRV-returned hosts share the same parent domain as the seed hostname, allowing hosts under a different domain suffix to be accepted. The suffix must not be a public suffix (per the Public Suffix List <https://publicsuffix.org/list/>_). See the :class:~pymongo.synchronous.mongo_client.MongoClient and :class:~pymongo.asynchronous.mongo_client.AsyncMongoClient documentation for security considerations.
• Dropped support for MongoDB 4.2.
• Added support for MongoDB 9.0.
• PyPy support is deprecated and will be removed in a future release.

... (truncated)

Commits

• 640dd23 Prep 4.18.2 release (#3066)
• 6a0ec65 Update changelog for CVE-2026-88029 reference (#3049)
• 44be553 BUMP 4.18.2.dev0
• 127d140 PYTHON-6085 Prep for 4.18.1 release (#3047)
• fa67658 PYTHON-5994 Use exact match for file ID in GridFS delete methods (#3046)
• 1011e57 Prep branch v4.18
• 4dd7303 PYTHON-6076 Request workflows permission in create-release-branch (#3039)
• e66da83 PYTHON-5956 Use shared python/setup action for CI setup (#2990)
• 22a2ec8 PYTHON-6021 Move _write_concern_for_cmd into BaseObject (#3036)
• 2a4a004 PYTHON-5874 Fix test_fork.py failures on Python 3.15 due to fork() Deprecatio...
• Additional commits viewable in compare view

Updates urllib3 from 2.7.0 to 2.8.0

Release notes

Sourced from urllib3's releases.

2.8.0

🚀 urllib3 is fundraising for HTTP/2 support

urllib3 is raising ~$40,000 USD to release HTTP/2 support and ensure long-term sustainable maintenance of the project. If your company or organization uses Python and would benefit from HTTP/2 support in Requests, pip, cloud SDKs, and thousands of other projects please consider contributing financially to ensure HTTP/2 support is developed sustainably and maintained for the long-haul.

Thank you for your support.

Security

Fixed the following security issues:

• The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, GHSA-8988-9cw3-xx77)
• HTTPResponse.stream() and read_chunked() could buffer a chunk-size line of unbounded length in memory. (High severity, GHSA-vxq7-64xx-v4gw)
• Chunked Deflate streaming could enter an infinite loop. (Medium severity, GHSA-gh4c-6fx4-qh6g)

[!IMPORTANT] urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes.

Configure proxy CA certificates and client certificates in proxy_ssl_context, and proxy identity checks with proxy_assert_hostname or proxy_assert_fingerprint. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections.

[!NOTE] CVE IDs had not yet been assigned to these advisories at the time of release due to a backlog at GitHub's CNA.

Deprecations & Removals

• Deprecated using an empty collection as the Retry option allowed_methods to retry any verb. (#5044)

Features

• Added Url.auth_decoded and Url.auth_decoded_joined convenience properties to the result of parse_url(). (#4945)
• Added basic_auth_encoding and proxy_basic_auth_encoding parameters to urllib3.util.make_headers(). (#5092)

Bugfixes

• Fixed response header handling to replace obsolete folded header lines (obs-fold) with spaces in accordance with RFC 9112, preventing raw CRLF sequences from appearing in header values such as Set-Cookie. (#1362)

• Fixed usage of proxy_ssl_context with ProxyManager when use_forwarding_for_https=True. Passing ssl_context instead of proxy_ssl_context for HTTPS proxies in this configuration now emits a FutureWarning and will raise an error in v3.0. (#2577)

• Changed behavior of the default ConnectionPool.pool initialization. LifoQueue is now resolved from the queue module after the ConnectionPool is instantiated instead of using the default cached QueueCls class property. This is done because sometimes the queue.LifoQueue is monkey-patched late in the program, such as by gevent. (#3289)

• Raised UnrewindableBodyError instead of ValueError when retrying a request whose body had tell() but not seek(). (#3779)

• Decoded percent-encoded SOCKS proxy credentials before authenticating with the proxy server. (#3785)

• Fixed HTTPResponse.drain_conn() to discard unread response data in 64 KiB chunks (same as the default amt when doing HTTPResponse.stream(...)). (#5019)

• Fixed is_ipaddress() to detect non-standard IPv4 forms accepted by socket.connect, such as hex (0x7f000001), octal (0177.0.0.1), and decimal integers (2130706433), ensuring SSL certificate verification uses the correct mode for these addresses. (#5029)

• Fixed HTTPConnectionPool.urlopen raising a misleading FullPoolError instead of ValueError when called with an invalid timeout argument on a pool created with block=True. (#5059)

• Fixed port-zero handling to preserve explicit :0 values instead of substituting the default ports 80 or 443 in URL parsing, pool selection, proxy configuration, connection_from_url(), and HTTP/2 request authority. (#5071, #5101)

• Fixed a bug where PoolManager passed the assert_hostname and assert_fingerprint parameters to HTTP connection pools. (#5077)

• Fixed HTTPConnectionPool.urlopen() and HTTP proxy forwarding to strip URL fragments from absolute request targets before sending requests. (#5079)

• Added safeguards to the proxy tunneling code to prevent potential security issues when handling invalid characters in the proxy host and HTTP headers. This change affects users of Python 3.10, Python 3.11, and Python 3.12 when the standard library does not contain the fix; those on newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the same security fixes. (#5091)

• Fixed HTTPSConnection.connect() overriding ProxyConfig.ssl_context's certificate policy and proxy identity checks with the target connection's TLS settings when forwarding through an HTTPS proxy.

  HTTPSConnection no longer applies target SNI, assertions, or client credentials to forwarding proxy handshakes and continues to use its ssl_context as a fallback when an HTTPS proxy forwards an HTTP target. (#5093)

• Fixed URL parsing to more strictly enforce RFC 3986 host syntax, rejecting invalid host input such as raw spaces and control characters, malformed percent-encodings, and percent-encoded control characters in HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel targets. Host normalization now also follows RFC 3986 normalization rules for percent-encoded octets by decoding percent-encoded unreserved characters and uppercasing the hexadecimal digits of retained percent-encoded octets. (#5095)

... (truncated)

Changelog

Sourced from urllib3's changelog.

2.8.0 (2026-09-15)

Security

Fixed the following security issues:

• The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, GHSA-8988-9cw3-xx77 <https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77>__)
• HTTPResponse.stream() and read_chunked() could buffer a chunk-size line of unbounded length in memory. (High severity, GHSA-vxq7-64xx-v4gw <https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw>__)
• Chunked Deflate streaming could enter an infinite loop. (Medium severity, GHSA-gh4c-6fx4-qh6g <https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g>__)

.. caution::

urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.
Configure proxy CA certificates and client certificates in
proxy_ssl_context, and proxy identity checks with
proxy_assert_hostname or proxy_assert_fingerprint.
Destination client certificates and identity overrides no longer
apply to HTTPS forwarding proxy connections.

Deprecations & Removals

• Deprecated using an empty collection as the Retry option allowed_methods to retry any verb. ([#5044](https://github.com/urllib3/urllib3/issues/5044) <https://github.com/urllib3/urllib3/issues/5044>__)

Features

• Added Url.auth_decoded and Url.auth_decoded_joined convenience properties to the result of parse_url(). ([#4945](https://github.com/urllib3/urllib3/issues/4945) <https://github.com/urllib3/urllib3/issues/4945>__)
• Added basic_auth_encoding and proxy_basic_auth_encoding parameters to urllib3.util.make_headers(). ([#5092](https://github.com/urllib3/urllib3/issues/5092) <https://github.com/urllib3/urllib3/issues/5092>__)

Bugfixes

... (truncated)

Commits

• b1d30ab Release 2.8.0
• 9016d7e Skip test_read_chunked_with_trailing_data_does_not_hang for brotlicffi (#5258)
• 9101f58 Fix nox -s docs warning (#5256)
• cd770b0 Merge commit from fork
• ea2ad7b Merge commit from fork
• 0716e31 Fix loading unencrypted client keys with a password in pyOpenSSL (#5255)
• 43c68c8 Test pickling of InvalidChunkLength (#5247)
• 308b279 Share security policy between GitHub and Read the Docs (#5253)
• 53fa073 Add policy on duplicate pull requests (#5252)
• 5f2a6a8 Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (#5232)
• Additional commits viewable in compare view

Updates werkzeug from 3.1.8 to 3.1.9

Release notes

Sourced from werkzeug's releases.

3.1.9

This is the Werkzeug 3.1.9 security fix release, which fixes security issues and bugs but does not otherwise change behavior and should not result in breaking changes compared to the latest feature release.

PyPI: https://pypi.org/project/Werkzeug/3.1.9/ Changes: https://werkzeug.palletsprojects.com/page/changes/#version-3-1-9 Milestone: https://github.com/pallets/werkzeug/milestone/46?closed=1

• safe_join on Windows does not allow special devices names with empty ADS markers on NTFS. GHSA-g6x2-hccm-hh4m
• ProfilerMiddleware uses profiling.tracing on Python 3.15. #3207
• uri_to_iri and iri_to_uri preserve empty username, password, and port 0. #3189
• Improve performance of parse_options_header. #3231
• Improve performance of parse_etags. #3231
• Improve performance of parse_cookie. #3231
• get_host also checks that the port is in the valid range. #3236
• The int URL converter returns a 404 instead of 500 error when the value is longer than sys.get_int_max_str_digits(). #3237
• Improve debugger PIN generation from cgroup data inside Podman. #3245
• Authorization parsing basic auth disallows non-base64 characters. #3248
• application/x-www-form-urlencoded form data is no longer limited to max_form_memory_size, only max_content_length. #3251
• LimitedStream.readinto does not resize the buffer when it reads less than the remaining size. #3253
• Rules with 10 or more converters in a single part assign matched values correctly. #3254
• The invalid Range suffix length -0 is no longer accepted. #3255

Changelog

Sourced from werkzeug's changelog.

Version 3.1.9

Released 2026-09-27

• safe_join on Windows does not allow special devices names with empty ADS markers on NTFS. :ghsa:g6x2-hccm-hh4m
• ProfilerMiddleware uses profiling.tracing on Python 3.15. :issue:3207
• uri_to_iri and iri_to_uri preserve empty username, password, and port 0. :issue:3189
• Improve performance of parse_options_header. :pr:3231
• Improve performance of parse_etags. :pr:3231
• Improve performance of parse_cookie. :pr:3231
• get_host also checks that the port is in the valid range. :pr:3236
• The int URL converter returns a 404 instead of 500 error when the value is longer than sys.get_int_max_str_digits(). :issue:3237
• Improve debugger PIN generation from cgroup data inside Podman. :issue:3245
• Authorization parsing basic auth disallows non-base64 characters. :pr:3248
• application/x-www-form-urlencoded form data is no longer limited to max_form_memory_size, only max_content_length. :pr:3251
• LimitedStream.readinto does not resize the buffer when it reads less than the remaining size. :pr:3253
• Rules with 10 or more converters in a single part assign matched values correctly. :pr:3254
• The invalid Range suffix length -0 is no longer accepted. :pr:3255

Commits

• 6604c3b release version 3.1.9
• a78b30a update dependencies
• 8d77320 disallow special name with ads (#3309)
• b2a2c09 disallow special name with ads
• 4efac9d add links
• 400c23e Allow flit_core 4.x (#3261)
• 7132a19 allow flit_core 4
• 6fba87c only accept ASCII digits
• 263f5ca disallow range -0 (#3255)
• 0c419f9 disallow range -0
• Additional commits viewable in compare view

Updates pymongo from 4.17.0 to 4.18.2

Release notes

Sourced from pymongo's releases.

PyMongo 4.18.2

Community notes: https://www.mongodb.com/community/forums/t/pymongo-4-18-2-released/343732

CVE-2026-96749 CVE-2026-96748 CVE-2026-96747

PyMongo 4.18.1

Community notes: https://www.mongodb.com/community/forums/t/pymongo-4-18-1-released/343338

PyMongo 4.18.0

Community notes: https://www.mongodb.com/community/forums/t/pymongo-4-18-released/343137

Changelog

Sourced from pymongo's changelog.

Changes in Version 4.18.2 (2026/09/24)

Version 4.18.2 is a bug fix release.

• Hardened the bson buffer size guard against signed integer overflow. (CVE-2026-96749_).
• Fixed connection string parsing to percent-decode each host individually. (CVE-2026-96748_).
• Client-side field level encryption now rejects a KMS endpoint ending in .sock. (CVE-2026-96747_).

.. _CVE-2026-96749: https://www.cve.org/CVERecord?id=CVE-2026-96749 .. _CVE-2026-96748: https://www.cve.org/CVERecord?id=CVE-2026-96748 .. _CVE-2026-96747: https://www.cve.org/CVERecord?id=CVE-2026-96747

Issues Resolved ...............

See the PyMongo 4.18.2 release notes in JIRA_ for the list of resolved issues in this release.

.. _PyMongo 4.18.2 release notes in JIRA: https://jira.mongodb.org/secure/ReleaseNote.jspa?projectId=10004&version=52896

Changes in Version 4.18.1 (2026/09/10)

Version 4.18.1 is a bug fix release.

• Use an exact match for the file ID in GridFS delete methods (CVE-2026-88029_).

.. _CVE-2026-88029: https://www.cve.org/CVERecord?id=CVE-2026-88029

Changes in Version 4.18.0 (2026/09/03)

PyMongo 4.18 brings a number of changes including:

• Added srvAllowedHostsSuffix as a URI option and keyword argument to :class:~pymongo.synchronous.mongo_client.MongoClient and :class:~pymongo.asynchronous.mongo_client.AsyncMongoClient. When connecting via mongodb+srv://, this option overrides the default requirement that SRV-returned hosts share the same parent domain as the seed hostname, allowing hosts under a different domain suffix to be accepted. The suffix must not be a public suffix (per the Public Suffix List <https://publicsuffix.org/list/>_). See the :class:~pymongo.synchronous.mongo_client.MongoClient and :class:~pymongo.asynchronous.mongo_client.AsyncMongoClient documentation for security considerations.
• Dropped support for MongoDB 4.2.
• Added support for MongoDB 9.0.
• PyPy support is deprecated and will be removed in a future release.

... (truncated)

Commits

• 640dd23 Prep 4.18.2 release (#3066)
• 6a0ec65 Update changelog for CVE-2026-88029 reference (#3049)
• 44be553 BUMP 4.18.2.dev0
• 127d140 PYTHON-6085 Prep for 4.18.1 release (#3047)
• fa67658 PYTHON-5994 Use exact match for file ID in GridFS delete methods (#3046)
• 1011e57 Prep branch v4.18
• 4dd7303 PYTHON-6076 Request workflows permission in create-release-branch (#3039)
• e66da83 PYTHON-5956 Use shared python/setup action for CI setup (#2990)
• 22a2ec8 PYTHON-6021 Move _write_concern_for_cmd into BaseObject (#3036)
• 2a4a004 PYTHON-5874 Fix test_fork.py failures on Python 3.15 due to fork() Deprecatio...
• Additional commits viewable in compare view

Updates urllib3 from 2.7.0 to 2.8.0

Release notes

Sourced from urllib3's releases.

2.8.0

🚀 urllib3 is fundraising for HTTP/2 support

urllib3 is raising ~$40,000 USD to release HTTP/2 support and ensure long-term sustainable maintenance of the project. If your company or organization uses Python and would benefit from HTTP/2 support in Requests, pip, cloud SDKs, and thousands of other projects please consider contributing financially to ensure HTTP/2 support is developed sustainably and maintained for the long-haul.

Thank you for your support.

Security

Fixed the following security issues:

• The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, GHSA-8988-9cw3-xx77)
• HTTPResponse.stream() and read_chunked() could buffer a chunk-size line of unbounded length in memory. (High severity, GHSA-vxq7-64xx-v4gw)
• Chunked Deflate streaming could enter an infinite loop. (Medium severity, GHSA-gh4c-6fx4-qh6g)

[!IMPORTANT] urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes.

Configure proxy CA certificates and client certificates in proxy_ssl_context, and proxy identity checks with proxy_assert_hostname or proxy_assert_fingerprint. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections.

[!NOTE] CVE IDs had not yet been assigned to these advisories at the time of release due to a backlog at GitHub's CNA.

Deprecations & Removals

• Deprecated using an empty collection as the Retry option allowed_methods to retry any verb. (#5044)

Features

• Added Url.auth_decoded and Url.auth_decoded_joined convenience properties to the result of parse_url(). (#4945)
• Added basic_auth_encoding and proxy_basic_auth_encoding parameters to urllib3.util.make_headers(). (#5092)

Bugfixes

• Fixed response header handling to replace obsolete folded header lines (obs-fold) with spaces in accordance with RFC 9112, preventing raw CRLF sequences from appearing in header values such as Set-Cookie. (#1362)

• Fixed usage of proxy_ssl_context with ProxyManager when use_forwarding_for_https=True. Passing ssl_context instead of proxy_ssl_context for HTTPS proxies in this configuration now emits a FutureWarning and will raise an error in v3.0. (#2577)

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